Question

8) A step in ecological succession is called a(n)______

28) DNA fingerprinting utilizes _________

29) Bacteria perform a form of cell division called __________

30)Which level of protein structure involves the coiling of the polypeptide into an alpha helix?

35) If the frequency of 2 alleles in a population is p = 08 and q = 0.2, and the population is in Hardy-Weinberg equilibrium, then the frequency of homozygote recessive genotype is ____________

Answer 1

Answer =

28) DNA fingerprinting utilizes Chemicals and DNA

Explanation - DNA fingerprinting is a laboratory technique which is used to establish a link between biological evidence and a suspect in a criminal investigation.

_DNA is extracted .

chemicals such as restriction enzymes are used to cut DNA.

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29) Bacteria perform a form of cell division called Binary fission

Explanation = The mechanism of cell division which is present in bacteria called as binary fission.

is a type of asexual reproduction.in this reprodcution first there is duplication of genetic material takes place.and then the bacteria is divided into two parts (cytokinesis) , each new organism receiving one copy of DNA.

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30)level of protein structure involves the coiling of the polypeptide into an alpha helix is secondary structure.

Explanation = The secondary structure is the second level of proteins structure.

it refers to the local folding of polypeptide chain due to the interactions between atoms of backbone.

alpha helix is secondary structure of protein.in alpha helix carbonyl of one amino acid bonded to the amino H of an amino acid.

alpha helix is mainly stabilized by hydrogen bonds.

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35) If the frequency of 2 alleles in a population is p = 08 and q = 0.2, and the population is in Hardy-Weinberg equilibrium, then the frequency of homozygote recessive genotype is = 0.04

Explanation =

p = 0.8

q= 0.2

the frequency of homozygote recessive genotype = ?

the frequency of homozygote recessive genotype = q2 = ( 0.2)2 = 0.04